Peter,

I've found some interesting things here. Based on my testing, I've found:

- If you have zero records in the specimens.tsv file in your .specimens archive, it will not do a replace.
- If you have at least one record in the specimens.tsv file, that will remove all the existing records and you will only see one record when you look at the specimen data.

So another alternative is to have one record in the specimens.tsv file in your archive to upload and replace all the dummy data and then delete that one record in lieu of having to have a vial on every record to do the delete.

The bug I've entered last night (https://www.labkey.org/issues/home/Developer/issues/details.view?issueId=22304) should address your needs on a codified level for sure in one of the 15.X releases in the near future.

Let me know if you have any further questions or concerns on this.

Regards,

Jon